The Testex micrometer is used to measure the thickness of the Press-O-Film tape, after a surface profile impression is made from the blasted surface.
Testex Press-O-Film replica tape offers a simple way of
obtaining an impression of a blasted surface. The impression can then be measured either by optical or standard profile gages.
The Testex replica tape kit consists of a gage, two rolls of Press-O-Film, a training surface, a burnishing tool and complete instructions.
Testex is the manufacturer of Press-O-Film replica tape. Press-O-Film provides inspectors and researchers a simple way to obtain an impression of a surface. Press-O-Film (POF) consists of a layer of crushable plastic microfoam coated onto a polyester film of highly uniform thickness. When compressed against a roughened material, Press-O-Film accurately replicates details of its surface roughness.